Bobbin-feeding device for weft-replenishing looms.



. PATENTED SEPT. 10, 1907. J. GABLER 6: R. KUNZ.

BOBBIN FEEDING DEVICE FOR WEPT REPLENISHING LOOMS. APPLICATION FILED JUNE 28,1906.

THE NORRIS PE1ERS ca, WASHINGTON, u. c.

JOHANNES GABLER AND ROBERT KUNZ, OF MIILHAUSEN, GERMANY.

BOBBIN-FEEDING DEVICE FOR WEFT-REPLENISHING LOOMS.

Specification of Letters Patent.

Patented Sept. 10, 1907.

Application filed June 28,1906. Serial No. 323,850-

To all whom it may concern:

Be it known that We, J OHANNES GABLER, head foreman, and RoBERT KUNZ, agent, subjects of the German Emperor, residing at Miilhausen, in the Province of Alsace and German Empire, have invented certain new and useful Improvements in Bobbin-Feeding Devices for Weft-Replenishing Looms, of which the following is a full, clear, and exact description.

This invention relates to a feeding device for looms whereby the spindles are automatically exchanged; the novel feature of this feeding device consisting in the fact that it is provided with means whereby, whenever an empty bobbin in the shuttle is to be replaced by a full one, a blow or impulse is imparted not only to the head of the empty bobbin but also to its tail end.

In ejecting devices, as heretofore constructed, wherein the impulse which effects the ejection is directed against the head only of the empty bobbin, it frequently occurs that during the exchange of bobbins which, as is well known, takes place while some of the thread of the weft still remains on the bobbin to be ejected, the tail end of the bobbin becomes entangled with the thread and remains in the shuttle. Moreover, even when this end does not become entangled with the thread, it still happens, more especially in the case of rapidly moving looms, that in consequence of the impetus being imparted to the head only of the bobbin, the empty bobbin is not ejected parallel to the batten, and that its tail end is by its weight prevented from being quickly removed to a suflicient distance from the batten, and remains in the shuttle and is broken therein, the shuttle at the same time being injured. These defects can be obviated by imparting to the empty bobbin an impulse not only at the head but also at some other point in its length. This is in accordance with the present invention effected by furnishing the feeding device with ejecting mechanism that acts on the tail end of the bobbin.

In the drawings the Figures 1 to 4 show the invention together with a shuttle. Figs. 5 and 6 are respectively a side elevation and a plan of the feeding device with the bobbin ejecting mechanism.

The feeding device b which moves in a horizontal direction at the tail end a of the bobbin terminates in a tongue 0, at the end of which there is pivotally mounted an L-shaped finger 6, provided with a base portion h. To the underside of the tongue 0 there is attached a leaf spring d which engages with the base It and thereby normally holds the finger a in an upright position.

' For the purpose of exchanging the bobbins, the feeding device is moved forward in the direction indicated by arrow Z, Fig. 3, whereby the finger e presses against the tail end a of the bobbin in the shuttle; as at the same time the head of the bobbin is simultaneously ejected from the retaining device of the shuttle, the empty bobbin is ejected with its ends in line with each other while a fresh bobbin is at the same time inserted in the shuttle. During the return movement of the feeding device, (Figs. 2 and 4) the finger passes under the new bobbin and is pressed downwards by it in the manner indicated in Fig. 2 and by broken lines in Fig.

4 and after the bobbin has passed over it the finger is again returned to its upright position by the action of the leaf spring (I and the weight of the base h. The feeding device has new again assumed its initial position, whereupon the above described operation is repeated.

What we claim and desire to secure by Letters Patent is:

1. In a bobbin feeding device, a feeder provided with pivoted means for engaging with the tail of the exhausted bobbin and assisting in removing the bobbin.

2. In a bobbin feeding device, a feeder, and a spring pressed finger secured thereto in position for engaging with the tail of the exhausted bobbin and assisting in I'GmOXIIIQ' the bobbin.

3. In a bobbin feeding device, a feeder, an L-shaped finger pivotally secured thereto in position for engaging with the tail end of an exhausted bobbin to assist in ejecting the bobbin, and a spring for holding the finger in its normal position.

In witness whereof, we subscribe our signatures, in presence of two witnesses.

.IOHANNES GABLER.

ROBERT KUNZ.

Witnesses BENJAMIN I LIEFELD, MADELINA Gnoss. 

